BTHTDTM expands to Been There Had That Done To MeDELAY
DENY
DEFEND
BTHTDTM
As an example of how petty that can be, I was just notified by my pharmacy that my insurer will not cover a refill on one prescription until 12/11 because it is "too early for RX TRI to be covered by insurance". The last time the pharmacy refilled that particular prescription the "Total drug cost"* was $4.21, the insurer paid $3.16, and my share was $1.05.
*Reading from the last monthly statement mailed to me from the insurer.